the research objectives were to identify the reality of legal knowledge and selective attention using the Rehcom system for Al-Rafidain basketball players, and to identify the correlation between selective attention and the legal knowledge of Al-Rafidain basketball players , And prediction of legal knowledge in terms of selective attention of players Al-Rafidain Basketball Club, the researcher used the descriptive approach in the survey method and the correlational relations on the 19 Al-Rafidain Basketball Club players. Conclusions In light of the research results and the statistical analysis of the data obtained, the researcher reached the following conclusions, that there is a relationship between legal knowledge and The selective attention of basketball players, the variable and the selective attention, and through the test preparation in the Rehcom system, has a very clear relationship to improving and developing a variable and selective attention.